You might also be interested in knowing about a WWI Centenary project that Europeana is doing - http://www.europeana1914-1918.eu/en (That's not the final site BTW) I believe they're trying to collate similar records from cultural institutions across Europe to be able to tell the story of the same events from all sides' own records. Perhaps that's a potential tie-in with the UK project. Just keep it in mind :-)